Studies in Porphyria I: Characterization of Enzyme Defects | NCT00004331

Studies
Studies in Porphyria I: Characterization of Enzyme Defects

NCT00004331

Sponsor

National Center for Research Resources (NCRR)

Status

Unknown status

Last Update Posted

Jun 24, 2005Estimated

Enrollment

Phase

Not provided

Conditions

Porphyria

Interventions

Not provided

Countries

United States

Protocol Section

Identification Module Status Module Sponsor/Collaborators Module Oversight Module Description Module Conditions Module Design Module Arms/Interventions Module Outcomes Module Eligibility Module Contacts/Locations Module References Module IPD Sharing Statement Module

Results Section

Participant Flow Module Baseline Characteristics Module Outcome Measures Module Adverse Events Module More Info Module

Annotation Section

Annotation Module

Document Section

Large Document Module

Derived Section

Miscellaneous Info Module Condition Browse Module Intervention Browse Module

Protocol Section

Identification Module

NCT ID

Results Section

No data available

No data is available for this block.

Annotation Section

No data available

No data is available for this block.

Document Section

No data available

No data is available for this block.

Derived Section

Miscellaneous Info Module

Version Holder

ID	Type	Description	Link
UTMB-399

Status Module

Record Verification Date

Dec 2003

Overall Recruitment Status or Expanded Access Status

Unknown status

Last Known Status

Recruiting

Delayed Posting

Not provided

Why Stopped

Not provided

Expanded Access Info

Start Date

Nov 1992

Primary Completion Date

Not provided

Completion Date

Not provided

First Submitted Date

Oct 18, 1999

First Submission Date that Met QC Criteria

Oct 18, 1999

First Posted Date

Oct 19, 1999Estimated

Results Waived

Not provided

Results First Submitted Date

Not provided

Results First Submitted that Met QC Criteria

Not provided

Results First Posted Date

Not provided

Certification/Extension (aka Delayed Results) First Submitted Date

Not provided

Certification/Extension First Submitted that Passed QC Review

Not provided

Certification/Extension First Posted Date

Not provided

Last Update Submitted Date

Jun 23, 2005

Last Update Posted Date

Jun 24, 2005Estimated

Name	Class
University of Texas	OTHER

Description Module

Brief Summary

OBJECTIVES: I. Characterize enzyme defects in patients with known or suspected porphyria and their family members.

II. Determine whether selected patients are eligible for other porphyria research protocols.

III. Provide blood, urine, and fecal samples from well characterized patients and their family members to investigators studying the nature of specific mutations in genes for heme biosynthetic pathway enzymes.

Detailed Description

PROTOCOL OUTLINE: All patients are evaluated for porphyria type and factors contributing to the clinical expression of their particular form of the disease. Testing includes erythrocyte porphobilinogen deaminase, erythrocyte protoporphyrin, plasma porphyrins, and urinary and fecal porphyrins and precursors.

Selected patients are entered into other porphyrin research protocols in this and other institutions, including analysis of DNA to identify specific mutations in genes for heme biosynthetic pathway enzymes.

Design Module

Study Type

Observational

Number of References to an Expanded Access Study

Not provided

Expanded Access Types

Not provided

Patient Registry

Not provided

Target Follow-Up Duration

Not provided

Phases

Not provided

Interventional Study Design

No data available

No data is available for this block.

Biospecimen

No data available

No data is available for this block.

Enrollment

Eligibility Module

Eligibility Criteria

Suspected or confirmed porphyria
Adults, children, and family members eligible

Accepts Healthy Volunteers

Sex

All

Sex/Gender Based

Not provided

Sex/Gender Description

Not provided

Minimum Age

0 Years

Maximum Age

Not provided

Standard Ages

ChildAdultOlder Adult

Study Population

Not provided

Sampling Method

Not provided

Contacts/Locations Module

Central Contacts

Not provided

Overall Officials

Name	Affiliation	Role
Karl Elmo Anderson	University of Texas	Study Chair

Locations

Facility	Status	City	State	ZIP	Country	Contacts
University of Texas Medical Branch	Recruiting	Galveston	Texas	77555-1109	United States

Condition Browse Module

MeSH Terms

ID	Term
D011164	Porphyrias
D008661	Metabolism, Inborn Errors
D035583	Rare Diseases

Ancestor Terms

ID	Term
D008659	Metabolic Diseases
D009750	Nutritional and Metabolic Diseases
D030342	Genetic Diseases, Inborn
D009358	Congenital, Hereditary, and Neonatal Diseases and Abnormalities

Browse Leaves

Not provided

Browse Branches

Not provided